Tag Archive: Diseases

Transfusions

It turns out that blood was used in antiquity for medicinal purposes. She was considered a bearer of vital force and "habitat" of the soul, so the doctors 'prescribed' to drink the warm blood of animals with various diseases. Sometimes they advised her to drink and healthy people – just a general state of the organism. You would not believe, but the blood even used as rejuvenator! The old men took her into the past in the hope of regaining power and appeal. Click Harry Kane for additional related pages. This lasted until 1928, that is, until the English scientist William Harvey did not open a closed circulatory system. Only when it became clear that blood should not drink and pour.

The first intravenous transfusion was held in 1667 in France. In that fateful day a man was infused blood of lamb. The experience is quite successful, but to the surprise and dismay of scientists, further attempts ended very sadly, they still lead to more complications and even death to patients. It was not until the early 19th century, when scientists finally realized their mistake: it turns out that a person generally can not transfuse the blood of animals, it is suitable only human blood. And in 1819 in England, held the first transfusion of human blood. In Russia, this experiment was carried out somewhat later – in 1832.

At that time, a woman dying of uterine bleeding, blood was transfused her husband. Woman recovered, and researchers rejoiced: the path to salvation for many patients found, they decided. However, again in front of them were disappointed: the people who poured someone's blood does not always survive. only in the early twentieth century Austrian scientist Karl Landsteiner found that the blood of all people are different. However, the discovery of blood groups was preceded by another very important event. It was found that a living organism recognizes all falling in a foreign substances (Antigens) and can protect against them.

Ornithosis

Ornithosis (ORNITHOSIS) etiology. Ornithosis caused by a group of filterable viruses, biologically and immunologically similar to a virus of psittacosis (psittacosis). The causative agent of ornithosis refers to a group of large viruses. Up to 2 years of virus remains active in the frozen state at a temperature of 4-4 concentrated suspensions do not lose their infectivity within 10-20 days. Most sensitive to experimental infection are white mice, distributed among domestic and wild birds. The source of infection for humans may be about 60 species of birds are doves, ducks, chickens, turkeys, piggy, goldfinches, puffins, pheasants, white chicks, orioles and many others. Jon S. Speelman understood the implications. The disease in birds manifested in the refusal of food, emaciation, diarrhea, mucous discharge from the appearance of the nose, eyes, ruffled feathers.

Pneumonia in birds is not observed. In the epidemiology of ornithosis for human pose greater danger Birds of virus whose disease does not manifest itself clinically. Isolation of virus from the body of sick birds to the environment goes along with the faeces and saliva. A person usually becomes infected through contact with sick birds. Atrium as in birds and in humans are mainly the respiratory tract, in which the infection enters by inhalation of dust contaminated with dried feces and saliva, as well as dust, sick cough. It should also be emphasized that the disease from person to person very rarely passed.

Ornithosis, is usually found among those who have contact with birds, but because the disease is often is professional in nature. It is distributed mainly among the workers of poultry farms, poultry farms, pet shops, zoological gardens, as well as in families where the containing various species of birds, including pigeons. Disease ornithosis occurs throughout the year, but more often in spring and summer months. Children parrot disease more frequently than in adults, occurs in abortive forms. Ornithosis occurs in different countries, especially prevalent in America, Japan, Australia and England.